AD9744ACP-PCB Analog Devices Inc, AD9744ACP-PCB Datasheet - Page 8

• Manufacturer Part Number: AD9744ACP-PCB
• Description: BOARD EVAL FOR AD9744ACP
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9744ACP-PCB

• Rohs Status: RoHS non-compliant
• Number Of Dac's: 1
• Number Of Bits: 14
• Outputs And Type: 1, Differential
• Sampling Rate (per Second): 210M
• Data Interface: Parallel
• Settling Time: 11ns
• Dac Type: Current
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9744

AD9744
TERMINOLOGY
Linearity Error (Also Called Integral Nonlinearity or INL)
It is defined as the maximum deviation of the actual analog
output from the ideal output, determined by a straight line
drawn from zero to full scale.
Differential Nonlinearity (or DNL)
DNL is the measure of the variation in analog value, normalized
to full scale, associated with a 1 LSB change in digital input code.
Monotonicity
A DAC is monotonic if the output either increases or remains
constant as the digital input increases.
Offset Error
The deviation of the output current from the ideal of zero is
called the offset error. For IOUTA, 0 mA output is expected
when the inputs are all 0s. For IOUTB, 0 mA output is expected
when all inputs are set to 1s.
Gain Error
The difference between the actual and ideal output span. The
actual span is determined by the output when all inputs are set
to 1s minus the output when all inputs are set to 0s.
Output Compliance Range
The range of allowable voltage at the output of a current output
DAC. Operation beyond the maximum compliance limits may
cause either output stage saturation or breakdown, resulting in
nonlinear performance.
Temperature Drift
It is specified as the maximum change from the ambient (25°C)
value to the value at either T
drift, the drift is reported in ppm of full-scale range (FSR)
per °C. For reference drift, the drift is reported in ppm per °C.
DCOM
DVDD
RETIMED
OUTPUT*
CLOCK
PULSE GENERATOR
LECROY 9210
R
2kΩ
SET
50Ω
0.1µF
3.3V
MIN
or T
REFIO
FS ADJ
DVDD
DCOM
CLOCK
SLEEP
1.2V REF
MAX
OUTPUT
CLOCK
. For offset and gain
Figure 5. Basic AC Characterization Test Set-Up (SOIC/TSSOP Packages)
REFLO
SEGMENTED SWITCHES
FOR DB13–DB5
150pF
TEKTRONIX AWG-2021
WITH OPTION 4
LATCHES
DIGITAL
DATA
CURRENT SOURCE
Rev. B | Page 8 of 32
ARRAY
PMOS
3.3V
SWITCHES
AVDD
LSB
AD9744
Power Supply Rejection
The maximum change in the full-scale output as the supplies
are varied from nominal to minimum and maximum specified
voltages.
Settling Time
The time required for the output to reach and remain within a
specified error band about its final value, measured from the
start of the output transition.
Glitch Impulse
Asymmetrical switching times in a DAC give rise to undesired
output transients that are quantified by a glitch impulse. It is
specified as the net area of the glitch in pV-s.
Spurious-Free Dynamic Range
The difference, in dB, between the rms amplitude of the output
signal and the peak spurious signal over the specified bandwidth.
Total Harmonic Distortion (THD)
THD is the ratio of the rms sum of the first six harmonic
components to the rms value of the measured input signal. It is
expressed as a percentage or in decibels (dB).
Multitone Power Ratio
The spurious-free dynamic range containing multiple carrier
tones of equal amplitude. It is measured as the difference
between the rms amplitude of a carrier tone to the peak spuri-
ous signal in the region of a removed tone.
ACOM
IOUTA
IOUTB
MODE
50Ω
50Ω
*AWG2021 CLOCK RETIMED
SO THAT THE DIGITAL DATA
TRANSITIONS ON FALLING EDGE
OF 50% DUTY CYCLE CLOCK.
MINI-CIRCUITS
T1-1T
RHODE & SCHWARZ
FSEA30
SPECTRUM
ANALYZER